Which component is essential for measuring engine torque electronically?

The correct answer identifies the cockpit indicator as essential for measuring engine torque electronically. A cockpit indicator serves as the interface between the engine's electronic monitoring systems and the pilot or operator, displaying real-time data regarding the engine's performance, including torque levels.

In modern turbine engines, torque measurements are crucial for performance monitoring and operational safety. The cockpit indicator processes the signals received from the engine's sensors and provides clear, interpretable readings to the pilot, allowing for effective management of the engine's power output.

While components like a fuel flow meter, a pressure gauge, and an oil temperature sensor play important roles in monitoring other aspects of engine performance, they do not directly measure torque. Therefore, it is the cockpit indicator that specifically supports the electronic measurement and display of engine torque information, helping operators make informed decisions regarding engine operation.